Closed by Andrew (andrew)
Thursday, 20 June 2013, 11:55 GMT+2Reason for closing: FixedAdditional comments about closing: Not reproducible, no new information
about newer versions. Should the problem
persist, please re-open.

Additional Info:The last crash with 3.0.6 caused a drawing lost. I was not able to reopen the last drawing - File size = 0 bytes!The Autosave function is enabled - 15 min - but I found only backups dated 9 days ago ....... unusable after 9 days permanent working on that drawing!Nice to have an additional Backup Program running ...

3.0.7 development snapshot is now available for download. It fixes one potential problem with crashes under Windows but I cannot tell yet if this is what has been the cause of the problems you have been experiencing.

The zooming / flickering issues were caused by the Qt update, yes. I've decided to use Qt 4.7 for now.An install from the ZIP should not cause any problems / different behavior for the autosave.I'll check if I can reproduce that here under Windows.

Nice - we have a rule!I tested a little bit the new release 3.0.7 under XP/32Crashes - the same problem like the 3.0.6 ...Beforehand: I lost my Autosave function in the 3.0.0 and if I remember right it must happen after installing the 3.0.6 .... ? The Function was still enabled but not working!

Now my testing:After running the 3.0.7 (from zip!) it crashed again every couple minutes. After disabling the Autosave function QCAD doesn't crash ......!!!If I enable the Autosave function it will crash again - exactly in the Time guideline from the Autosave function. To make it more interesting for the programmer it will only crash after the third run of Autosave. Working or not working on the drawing doesn't matter.

My 2 cents: It has definitive something to do with the Autosave Function ...

3.Then installed with installer 3.0.7 and now I have absolutely no problems at all -auto-save function working as it should and Ctrl save and File > Save working with no problems!So for now I`ll leave things like this and test some more.

My theory is that somehow both applications when run 'side by side' are using the appdata function and maybe this is conflicting in some way, is this possible here?

Test:3.0.7 running without Autosave, worked on a drawing,Manually saved the drawing 3 times in row with "Save",1. time - OK,2. time - OK,3. time - crash!Drawing has again a 0 Byte size ...Between savings I haven't changed anything on the drawing.